How to login the user to an external page and redirect the user there?

Question

I'm currently trying to find a way to redirect the user to an external protected page, for example foo.com/dashboard. I have the user login credentials and auth cookie for the page. So my question is that how I can redirect the user to that page already logged in, so the user doesn't have to login, I do the login? I will have to add an Cookie header to the request, but it isn't possible with html.

Answer 1

Do you mean...?

window.location = './another-location/index.html';